Spherical dumbbell



FIG. 1 is a perspective view of a spherical dumbbell showing the newdesign.

FIG. 2 is a top view of the spherical dumbbell shown in FIG. 1.

FIG. 3 is a side view of the spherical dumbbell shown in FIG. 1; and,

FIG. 4 is a side view of the spherical dumbbell shown in FIG. 1.

The broken lines indicate unclaimed portions of the article and form nopart of the claimed design.

CLAIM The ornamental design for a spherical dumbbell, as shown anddescribed.